<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
           div{
               width: 500px;
               height: 500px;
               background: url(images/pk1.png) no-repeat;
               border: 1px solid pink;
               background-size: 100% auto;
           }  
    </style>
</head>
<body>
    <div>

    </div>
</body>
</html>